Distribution and Mycorrhizal Characteristics of AM fungi in the Rhizosphere of Plants Associated with Lilium tsingtauense
In October 2014,the rhizosphere soil and root samples of Ligustrum obtusifolium,Stephanandra incisa,and Cerasus serrulata associated with Lilium tsingtauense were collected in Laoshan in Shandong,China to isolate arbuscular mycorrhizal(AM) fungus spores,identify AM fungi morphology,and determine mycorrhizal colonization.Total 24 species in 4 genera of AM fungi were identified,of which 13 species in 4 genera,12 species in 4 genera,and 13 specie in 4 genera were isolated in the rhizosphere of L.obtusi folium,S.incisa and C.serrulata,respectively.The dominant species were Glomus mosseae,Glomus geosporum in the rhizosphere of L.obtusi folium.G.mosseae,Acaulospora mellea,and Gigaspora gigantean were the dominant species of S.incisa.While G.mosseae,Glomus verruculosum,and Glomus aggregatum were the dominant species of C.serrulata.Total mycorrhizal colonization percentage,arbuscular colonization,vesicular colonization,hyphal colonization,and spore density decreased with the increasing of soil depth of growing plants associated with L.tsingtauense,and there were significant difference of AM fungal colonization in different soil layers of the same plant.There was a significant positive correlation between AM fungal spore density and acid phosphatase,urease or pH value,respectively.There were also positive correlations between total mycorrhizal colonization percentage or the arbuscular colonization percentage and alkaline phosphatase or urease,respectively.And there was a positive correlation between hypha colonization percentage and available P content in soil of growing plants associated with L.tsingtauense.
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万方数据
维普
